export default {
    getScreen: function() {
        let width = document.body.clientWidth
        if (width >= 1200) {
            return 3 //大屏幕
        } else if (width >= 992) {
            return 2 //中屏幕
        } else if (width >= 768) {
            return 1 //小屏幕
        } else {
            return 0 //超小屏幕
        }
    }
}